import java.io.*;
public class Main{
	public static void main(String[] a){
		int n;
		String p="";
		try{
			BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
			p=in.readLine();
		}catch(IOException c){}
		n=Integer.parseInt(p);
		if(n%2==0)
		System.out.println("even");
		else
		System.out.println("odd");
	}
}